Security forces inspect the site of a twin bombing at a crowded market in Baghdad Iraq, Friday, Jan. 30, 2015. Police officials say the Friday morning attack started with a bomb exploding near carts selling used clothes in the city's central Bab al-Sharqi area. The second explosion, caused by a car bomb, went off two minutes later targeting people who rushed to help the victims from the first blast, killed and wounded more than a dozen of people, Iraqi officials said. (AP Photo/Hadi Mizban)
(The Associated Press)

Security forces inspect the site of a twin bombing at a crowded market in Baghdad Iraq, Friday, Jan. 30, 2015. Police officials say the Friday morning attack started with a bomb exploding near carts selling used clothes in the city's central Bab al-Sharqi area. The second explosion, caused by a car bomb, went off two minutes later targeting people who rushed to help the victims from the first blast, killed and wounded more than a dozen of people, Iraqi officials said. (AP Photo/Hadi Mizban)
(The Associated Press)

Security forces inspect the site of a twin bombing at a crowded market in Baghdad Iraq, Friday, Jan. 30, 2015. Police officials say the Friday morning attack started with a bomb exploding near carts selling used clothes in the city's central Bab al-Sharqi area. The second explosion, caused by a car bomb, went off two minutes later targeting people who rushed to help the victims from the first blast, killed and wounded more than a dozen of people, Iraqi officials said. (AP Photo/Hadi Mizban)
(The Associated Press)

Police officials say the Friday morning attack started with a bomb exploding near carts selling used clothes in the city's central Bab al-Sharqi area.

The second explosion, caused by a car bomb, went off two minutes later targeting people who rushed to help the victims from the first blast. Police and hospital officials said along with the eight killed, 20 people were wounded at the market.

All officials spoke on condition of anonymity because they are not authorized to speak to the media.

Iraq is facing its worst crisis since the 2011 withdrawal of U.S. troops. Militants from the Islamic State group now control about a third of the country.